Part 3: Motor driver board We used 2 gear motors with rubber wheels. 14 cm Zip/cable ties were used (2 per each motor) to fix the motors to the base plate. It has the following features: The motor driver chip L293D (D=dual direction) was a very easy chip to implement. The enable pin is used […]

Part 3: Optical sensor board After visiting many similar projects and testing loads of designs we settled down to use 3 sensors arranged as a triangle. Our assumptions of deciding the distances were based on: The board is white (formica) The standard 2cm black color electrical tape is used for the lines Testing the prototype […]

Part 2 : Constructing the body We decided the size to be 12cm x 10cm. We needed the space to fix the Arduino board and motor driver, at this point the boys wanted to install a knight rider light system as well – just to add some visual effects. So the space is required to […]

Part 1 : Brainstorm I was looking for an effective way to teach how a CPU work to bunch of AL students. The kids were seriously bored studying the history of computers, NBF form, system flow chart diagrams that still talk about punch card readers, Von Neumann architecture, CPU flags and the various address modes […]